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锌渣的产生是连续热镀锌过程中一种必然的冶金行为,影响着镀锌质量。渣体的产生与锌液物理场特性密切相关,除渣不当会引起更多的表面缺陷。通过构建三维粘性标准k-ε双方程湍流模型,根据具体的初始条件与边界条件,求解得到锌锅流域内流动、传热及组分运输规律,确定漩涡分布特性,观察点的仿真计算结果与实验结果基本吻合,证明了计算方法的准确性。通过理论计算可以有效预测锌锅内锌渣的分布规律以及除渣作业危险区,研究结果为热镀工艺的优化及除渣机器人的除渣设计提供理论依据和技术支持。
The production of dross is an inevitable metallurgical activity in the continuous hot-dip galvanizing process, affecting the quality of galvanized steel. The production of slag body is closely related to the physical properties of zinc liquid. Improper slag removal will cause more surface defects. Through the establishment of a three-dimensional viscous standard k-ε turbulence model, the flow, heat transfer and component transport in the zinc pan can be solved according to the initial conditions and the boundary conditions. The distribution characteristics of the vortex are determined. The simulation results The experimental results are basically consistent, which proves the accuracy of the calculation method. The theoretical calculation can effectively predict the distribution of zinc dregs in the zinc pot and the danger zone of the dross removing operation. The results provide theoretical basis and technical support for the optimization of the hot-dip plating process and the deslagging design of the drossing robot.